Answer: (SL) Semilunar Valves
Explanation:
Answer:
1. Use less cars travel way less with them if youan use a bike or walk to try stop too much CO2 being produced
2. Use less papaer or recyle trees are being cut down for them wich break down habittats and prevents filtrating CO2
3.RECYLE recylimg is something everyone can do it helps stop polution, rubish being frown in the seas oceans and animals eating them
Meiosis is needed for sexual reproduction, here chromosome number is halved, it provides for mixing up of genes.
mitosis is needed for growth, repair, replacement, asexual reproduction.
it maintains same chromosome number
